GB1535876A - Hydraulic presses for shearing or punching operations - Google Patents
Hydraulic presses for shearing or punching operationsInfo
- Publication number
- GB1535876A GB1535876A GB37090/76A GB3709076A GB1535876A GB 1535876 A GB1535876 A GB 1535876A GB 37090/76 A GB37090/76 A GB 37090/76A GB 3709076 A GB3709076 A GB 3709076A GB 1535876 A GB1535876 A GB 1535876A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- valve
- working
- accumulator
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/163—Control arrangements for fluid-driven presses for accumulator-driven presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
- B23D15/14—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8735—With means providing for plural steps in tool stroke
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8821—With simple rectilinear reciprocating motion only
- Y10T83/8827—Means to vary force on, or speed of, tool during stroke
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8821—With simple rectilinear reciprocating motion only
- Y10T83/8858—Fluid pressure actuated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Control Of Presses (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
1535876 Shearing; punching SOCIETE DES ANCIENS ATELIERS H JAMBON 7 Sept 1976 [10 Sept 1975] 37090/76 Heading B3W In an hydraulic shearing or punching press, a fluid accumulator A.C. communicates with the working side of the piston 1, via a circuit including a normally-closed spring loaded valve 10 and a spool valve 13 movable in a chamber 12, transversely to the piston axis, and a rod 19 rigid with the piston 1 slides along a link 18 which has an adjustable nut 21 at the end approached when the piston is ending its working stroke, a bellcrank 17 pivotable about a fixed pin and having one arm connected to the other end of the link 18, having the other arm in engagement with an extension of the spool valve 13. In operation, a motor M drives pumps P 1 , for directing hydraulic fluid alternatively against the working and return surfaces 3, 4 respectively of the piston 1 via a solenoid valve EVA, and a pump P 2 for filling the accumulator AC. Fluid from the working chamber 5 is directed by a valve 7 to a reservoir 25 during the piston return stroke. When a pressure switch 9 detects that the accumulator AC has reached the predetermined pressure, the pump P 2 is connected via a solenoid valve EVB to the reservoir 25 under zero pressure to cool the hydraulic fluid. From the begining of a working stroke, fluid is supplied to working surface 3 only via the pump P 1 and valve 7 until the arm 19 engages a switch 20 which via a solenoid valve EVC opens the valve 10 to connect the accumulator to the working chamber 5. Engagement of the arm with the nut 21, adjusted for the required working stroke length, moves one spool valve 13 to the right to close the port 14 from the accumulator and open the port 15 to the reservoir. Actuation of a switch 24 during this movement reverses the solenoid valves EVA &c. and initiates the return stroke of the piston.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7527694A FR2323478A1 (en) | 1975-09-10 | 1975-09-10 | HYDRAULIC PRESS FOR SHEARING OR CUTTING OPERATION |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1535876A true GB1535876A (en) | 1978-12-13 |
Family
ID=9159806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB37090/76A Expired GB1535876A (en) | 1975-09-10 | 1976-09-07 | Hydraulic presses for shearing or punching operations |
Country Status (4)
Country | Link |
---|---|
US (1) | US4022096A (en) |
DE (1) | DE7627912U1 (en) |
FR (1) | FR2323478A1 (en) |
GB (1) | GB1535876A (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2808091A1 (en) * | 1978-02-24 | 1979-08-30 | Moog Gmbh | DEVICE FOR DAMPING THE CUTTING EFFECT IN HYDRAULIC PRESSES |
US4137175A (en) * | 1978-02-27 | 1979-01-30 | Amsted Industries Incorporated | Method and means for filtering liquids |
US4180462A (en) * | 1978-02-27 | 1979-12-25 | Amsted Industries Incorporated | Method and means for filtering liquids |
US4860646A (en) * | 1987-02-10 | 1989-08-29 | Marathon Corporation | Compactor with hydraulic dwell and method |
JP2547230Y2 (en) * | 1991-05-15 | 1997-09-10 | 日東工器株式会社 | Hydraulic actuator |
CA2080870A1 (en) * | 1992-01-14 | 1993-07-15 | Gerard J. Schorn | Method and system for controlling punch press noise |
DE4308344A1 (en) * | 1993-03-16 | 1994-09-22 | Mueller Weingarten Maschf | Method for controlling the drive of a hydraulic press and device for carrying out the method |
DE4429782A1 (en) * | 1993-09-02 | 1995-03-09 | Mueller Weingarten Maschf | Method for regulating the drive of a hydraulic press and device for implementing the method |
FI97339C (en) * | 1995-04-26 | 1996-12-10 | Valmet Corp | Web cutting device |
US6658972B1 (en) * | 1999-06-24 | 2003-12-09 | Heidelberger Druckmaschinen Ag | Full force web severer |
ATE293534T1 (en) * | 1999-09-30 | 2005-05-15 | Nitrogas S L | CYLINDER EQUIPPED WITH A COMPLETE BAR STOPPING SYSTEM |
RU2457951C2 (en) * | 2010-11-02 | 2012-08-10 | Федеральное агентство по образованию Государственное общеобразовательное учреждение высшего профессионального образования "Норильский индустриальный институт" | Hydraulic press |
RU2461462C2 (en) * | 2010-11-09 | 2012-09-20 | Федеральное агентство по образованию Государственное общеобразовательное учреждение высшего профессионального образования "Норильский индустриальный институт" | Hydraulic press |
DE102012013098B4 (en) * | 2012-06-30 | 2014-08-07 | Hoerbiger Automatisierungstechnik Holding Gmbh | machine press |
CN104043866B (en) * | 2014-06-20 | 2016-08-24 | 安徽东海机床制造有限公司 | High-speed shearing device |
CN107081464B (en) * | 2017-06-08 | 2021-03-02 | 中国重型机械研究院股份公司 | Hydraulic shear driving device for thick belt shearing |
CN108907872A (en) * | 2018-07-12 | 2018-11-30 | 朱亚南 | A kind of safety cutting machine |
CN115647455B (en) * | 2022-10-28 | 2023-08-11 | 江苏东方液压有限公司 | Hydraulic type gantry scissors with intelligent feedback function |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1170964A (en) * | 1966-03-08 | 1969-11-19 | Ortho Pharma Corp | Substituted 4-Phenyl-Cyclohexenecarboxylic Acids |
US3827328A (en) * | 1972-12-26 | 1974-08-06 | Greenerd Press & Machine Co In | Control system for hydraulic presses |
US3908496A (en) * | 1973-01-18 | 1975-09-30 | Advanced Machine Design Co | Hydraulic shearing machine |
-
1975
- 1975-09-10 FR FR7527694A patent/FR2323478A1/en active Granted
-
1976
- 1976-08-30 US US05/718,536 patent/US4022096A/en not_active Expired - Lifetime
- 1976-09-07 GB GB37090/76A patent/GB1535876A/en not_active Expired
- 1976-09-07 DE DE7627912U patent/DE7627912U1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4022096A (en) | 1977-05-10 |
FR2323478A1 (en) | 1977-04-08 |
DE7627912U1 (en) | 1977-03-03 |
FR2323478B1 (en) | 1979-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |